The invention relates to a battery heating device and a vehicle, the battery heating device comprises a controller, a power battery and at least two motor electric control assemblies, each motor electric control assembly comprises a motor winding and a bridge arm converter connected with the motor winding, and the power battery comprises at least two battery modules connected in series; and the controller is used for controlling the two battery modules to alternately discharge and heat the power battery under the condition that the running mode of the vehicle is a heating mode, and controlling the upper bridge switch tube and the lower bridge switch tube in the multi-phase bridge arm corresponding to each bridge arm converter to be alternately conducted, so that an electricity storage loop is formed when the battery modules are in a discharge state, and the power storage loop is used for supplying power to the power battery when the battery modules are in a heating state. And when the battery module is in a non-discharge state, a discharge loop is formed, so that the motor winding charges the battery module. According to the heating device, the two battery modules can be alternately discharged and charged in turn, so that the power battery can be heated, and the stability of the voltage of the power battery can be effectively ensured.

    本公开涉及一种电池加热装置和车辆,包括控制器,动力电池,至少两套电机电控组件,电机电控组件包括电机绕组,以及与电机绕组连接的桥臂变换器,动力电池包括至少两个串联的电池模组;控制器,用于在车辆的运行模式为加热模式的情况下,控制两个电池模组交替放电,为动力电池加热,并控制每个桥臂变换器对应的多相桥臂中的上桥开关管与下桥开关管交替导通,以在电池模组处于放电状态时,形成储电回路,为电机绕组储电,在电池模组处于非放电状态时,形成放电回路,以使电机绕组向电池模组充电。能够通过两个电池模组交替放电,使两个电池模组轮流充电,从而不仅能够实现对动力电池的加热,也能够有效保证动力电池电压的稳定性。


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    Title :

    Battery heating device and vehicle


    Additional title:

    电池加热装置和车辆


    Contributors:
    LING HEPING (author) / YAN LEI (author) / GAO WEN (author) / SONG GAN (author)

    Publication date :

    2024-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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